Vzácné a málo známé druhy lišejníků Třebíčska a okolí

New records of 65 rare and little known lichens from the Třebíč region and its surroundings (SW Moravia) are presented and commented upon. Buellia violaceofusca, Parmelia barrenoae and Usnea wasmuthii are new to the Czech Republic. Other valuable records are e.g. Acarospora oligospora, Anaptychia ciliaris, Arthonia byssacea, A. endlicheri, Bacidia auerswaldii, B. circumspecta, Caloplaca substerilis, Cetrelia monachorum, C. olivetorum, Cladonia decorticata, Gyalecta flotowii, G. truncigena, Hypotrachyna revoluta, Lecania cyrtellina, Lecidea promixta, L. strasseri, Peltigera malacea, Phaeophyscia ciliata, Rinodina degeliana, R. excrescens, Schismatomma decolorans, Thelopsis rubella, Usnea glabrata and U. intermedia. The history of lichenological research in the region is summarized.